GB1069792A - Method of manufacturing bodines of foamed plastic - Google Patents

Method of manufacturing bodines of foamed plastic

Info

Publication number
GB1069792A
GB1069792A GB43039/63A GB4303963A GB1069792A GB 1069792 A GB1069792 A GB 1069792A GB 43039/63 A GB43039/63 A GB 43039/63A GB 4303963 A GB4303963 A GB 4303963A GB 1069792 A GB1069792 A GB 1069792A
Authority
GB
United Kingdom
Prior art keywords
granules
density
foamed plastic
compression
mass
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB43039/63A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wmb International AB
Original Assignee
Wmb International AB
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Wmb International AB filed Critical Wmb International AB
Publication of GB1069792A publication Critical patent/GB1069792A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/22—After-treatment of expandable particles; Forming foamed products
    • C08J9/228—Forming foamed products
    • C08J9/236—Forming foamed products using binding agents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/20—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of indefinite length
    • B29C44/206—Using expandable particles or beads as starting material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C67/00—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
    • B29C67/20—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00 for porous or cellular articles, e.g. of foam plastics, coarse-pored
    • B29C67/207—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00 for porous or cellular articles, e.g. of foam plastics, coarse-pored comprising impregnating expanded particles or fragments with a binder

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)

Abstract

Foamed plastic material is obtained by heating granules of synthetic plastic material containing an expanding agent in two or three expanding steps so that the mass of granules is brought to a density which is substantially lower than the desired density of the product and then reducing the mass of the expanded granules in a subsequent interconnection step by displacing the granules relatively to one another and/or by compression so as to fill the interspaces between adjacent granules to a substantial degree, whereby the density of the coherent body is increased. Binding agents such as polyvinyl acetate dissolved in ethyl alcohol or phenol, urea, polyurethane or epoxy resins may be used, or the granules may be fused by a high-frequency current. The expanded granules may be interconnected by compression between the endless belts of the apparatus described in Division B5.
GB43039/63A 1962-11-01 1963-10-31 Method of manufacturing bodines of foamed plastic Expired GB1069792A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE1174362 1962-11-01

Publications (1)

Publication Number Publication Date
GB1069792A true GB1069792A (en) 1967-05-24

Family

ID=20294539

Family Applications (1)

Application Number Title Priority Date Filing Date
GB43039/63A Expired GB1069792A (en) 1962-11-01 1963-10-31 Method of manufacturing bodines of foamed plastic

Country Status (4)

Country Link
US (1) US3501558A (en)
DE (1) DE1629759A1 (en)
GB (1) GB1069792A (en)
NL (1) NL299856A (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3800018A (en) * 1965-04-15 1974-03-26 Saint Gobain Fabrication of cellular resinous products
FR1555781A (en) * 1967-12-06 1969-01-31
US3907479A (en) * 1971-08-03 1975-09-23 Wasagchemie Ag Device for the compression of black powder
US4141772A (en) * 1977-06-27 1979-02-27 The Procter & Gamble Company Method and apparatus for forming a continuous reinforced fibrous web
US4217078A (en) * 1977-06-27 1980-08-12 The Procter & Gamble Company Apparatus for forming a continuous reinforced fibrous web
US4252517A (en) * 1978-08-09 1981-02-24 Olin Corporation Apparatus for crushing partially cured freely risen foam
DE3706227A1 (en) * 1987-02-26 1988-09-08 Bayer Ag MOLDABLE SEMI-FINISHED PRODUCTION
US5786000A (en) * 1996-08-28 1998-07-28 Berner; Rolf E. Continuous molding machine with pusher
JP3775612B2 (en) * 1996-12-24 2006-05-17 株式会社ジェイエスピー Manufacturing method and manufacturing apparatus for foam molded article
JP2001198939A (en) 2000-01-21 2001-07-24 Jsp Corp Apparatus for manufacturing foamed molded object
EP2096183B1 (en) * 2006-10-23 2013-06-19 Mitsubishi Materials Corporation Apparatus for producing porous body and method for producing porous body

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3037897A (en) * 1957-04-08 1962-06-05 Tru Scale Inc Method of making structural panel articles
US3086248A (en) * 1959-12-07 1963-04-23 Armstrong Cork Co Process for reducing aging period of cellular products formed with steam
NL284511A (en) * 1961-10-20 1900-01-01

Also Published As

Publication number Publication date
NL299856A (en)
US3501558A (en) 1970-03-17
DE1629759A1 (en) 1971-02-25

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